Front Disc Brake ............................................................................................................................ 108 Load Sensing Proportioning Valve (LSPV).................................................................................... 109 Deceleration Sensing Proportioning Valve (DSPV) ....................................................................... 109 On-vehicle Service.............................................................................................................................. 110 Front Disc Brake Assembly............................................................................................................
110 Front Disc Brake Pad..................................................................................................................... 116 Front Drum Brake Assembly (Two Leading and Dual Two Leading)............................................. 122 Rear Drum Brake Assembly (Except Drum Inside Diameter 370 Mm).......................................... 130 Rear Drum Brake Assembly (Drum Inside Diameter 370 Mm)...................................................... 138 Brake Pedal and Control................................................................................................................
142 Hydraulic Booster And Brake Pedal Assembly.............................................................................. 149 Hydraulic Booster........................................................................................................................... 152 Accumulator and O-ring Replacement........................................................................................... 154 Clevis and Lock Nut Replacement................................................................................................. 155 Guard Replacement.......................................................................................................................
156 Load Sensing Proportioning Valve................................................................................................. 157 Deceleration Sensing Proportioning Valve .................................................................................... 161 Unit Repair.......................................................................................................................................... 163 Wheel Cylinder Assembly (Without Auto-adjuster)........................................................................ 163 Wheel Cylinder Assembly (With Auto-adjuster).............................................................................
166 Master Cylinder Assembly (NHR).................................................................................................. 180 Master Cylinder Assembly (NKR / NPR / NQR / NPS) .................................................................. 183 ANTI-LOCK BRAKE SYSTEM (ABS) ...................................................................................................... 187 General Description ............................................................................................................................ 187 Service Precaution.........................................................................................................................
187 General Description ....................................................................................................................... 187 System Components...................................................................................................................... 188 Electronic Hydraulic Control Unit (EHCU)...................................................................................... 188 Hydraulic Unit (HU)........................................................................................................................
188 ABS Warning Light......................................................................................................................... 188 Wheel Speed Sensor..................................................................................................................... 188 Normal and Anti-lock Braking ........................................................................................................ 188 Brake Pedal Travel ........................................................................................................................
189 Acronyms and Abbreviations ......................................................................................................... 189 General Diagnosis .............................................................................................................................. 190 General Information ....................................................................................................................... 190 ABS Service Precautions............................................................................................................... 190 Computer System Service Precautions .........................................................................................
190 General Service Precautions ......................................................................................................... 190 Note On Intermittents..................................................................................................................... 190 Test Driving ABS Complaint Vehicles............................................................................................ 190 “ABS” Warning Light ...................................................................................................................... 191 Normal Operation...........................................................................................................................
191 Basic Diagnostic Flow Chart.......................................................................................................... 191 Basic Inspection Procedure ........................................................................................................... 192 Tech 2 Scan Tool........................................................................................................................... 193 Tech 2 Features.............................................................................................................................
194 Getting Started............................................................................................................................... 194 Operating Procedure (For Example).............................................................................................. 195 DTC Modes.................................................................................................................................... 196 DTC Information Mode...................................................................................................................
196 Plotting Snapshot Graph................................................................................................................ 197 Plotting Graph Flow Chart (Plotting Graph After Obtaining Vehicle Information) .......................... 198 Flow Chart for Snapshot Replay (Plotting Graph) ......................................................................... 199 Tech 2 Data Display....................................................................................................................... 200 Special Function ............................................................................................................................
200 EHCU Connector Pin-out Checks.................................................................................................. 204 Parts Location................................................................................................................................ 205 Circuit Diagram .............................................................................................................................. 207 Connector List................................................................................................................................ 213